• Linus Torvalds's avatar
    Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · a66b4cd1
    Linus Torvalds authored
    Pull vfs open-related updates from Al Viro:
     - "do we need fput() or put_filp()" rules are gone - it's always fput()
       now. We keep track of that state where it belongs - in ->f_mode.
     - int *opened mess killed - in finish_open(), in ->atomic_open()
       instances and in fs/namei.c code around do_last()/lookup_open()/atomic_open().
     - alloc_file() wrappers with saner calling conventions are introduced
       (alloc_file_clone() and alloc_file_pseudo()); callers converted, with
       much simplification.
     - while we are at it, saner calling conventions for path_init() and
       link_path_walk(), simplifying things inside fs/namei.c (both on
       open-related paths and elsewhere).
    * 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits)
      few more cleanups of link_path_walk() callers
      allow link_path_walk() to take ERR_PTR()
      make path_init() unconditionally paired with terminate_walk()
      document alloc_file() changes
      make alloc_file() static
      do_shmat(): grab shp->shm_file earlier, switch to alloc_file_clone()
      new helper: alloc_file_clone()
      create_pipe_files(): switch the first allocation to alloc_file_pseudo()
      anon_inode_getfile(): switch to alloc_file_pseudo()
      hugetlb_file_setup(): switch to alloc_file_pseudo()
      ocxlflash_getfile(): switch to alloc_file_pseudo()
      cxl_getfile(): switch to alloc_file_pseudo()
      ... and switch shmem_file_setup() to alloc_file_pseudo()
      __shmem_file_setup(): reorder allocations
      new wrapper: alloc_file_pseudo()
      switch atomic_open() and lookup_open() to returning 0 in all success cases
      document ->atomic_open() changes
      ->atomic_open(): return 0 in all success cases
      get rid of 'opened' in path_openat() and the helpers downstream
pipe.c 26.9 KB